Dynamics of emitting electrons in strong laser fields

Соколов, И. В.; Naumova, Natalia; Nees, J.; Mourou, G.; Yanovsky, V.

doi:10.1063/1.3236748

Cited by 96 publications

(111 citation statements)

References 28 publications

(31 reference statements)

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“…A list of alternative equations can be found in the recent review (Hammond, 2010) (see also Seto et al, 2011). A phenomenological equation of motion, including RR and quantum effects related to photon recoil, has been suggested in Sokolov et al, 2010aSokolov et al, , 2009 (see also Sec. VI.B).…”

Section: Radiation Reactionmentioning

confidence: 99%

Extremely high-intensity laser interactions with fundamental quantum systems

et al. 2012

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The field of laser-matter interaction traditionally deals with the response of atoms, molecules and plasmas to an external light wave. However, the recent sustained technological progress is opening up the possibility of employing intense laser radiation to trigger or substantially influence physical processes beyond atomic-physics energy scales. Available optical laser intensities exceeding 10 22 W/cm 2 can push the fundamental lightelectron interaction to the extreme limit where radiation-reaction effects dominate the electron dynamics, can shed light on the structure of the quantum vacuum, and can trigger the creation of particles like electrons, muons and pions and their corresponding antiparticles. Also, novel sources of intense coherent high-energy photons and laserbased particle colliders can pave the way to nuclear quantum optics and may even allow for potential discovery of new particles beyond the Standard Model. These are the main topics of the present article, which is devoted to a review of recent investigations on high-energy processes within the realm of relativistic quantum dynamics, quantum electrodynamics, nuclear and particle physics, occurring in extremely intense laser fields.

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Section: Radiation Reactionmentioning

confidence: 99%

Extremely high-intensity laser interactions with fundamental quantum systems

et al. 2012

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“…In [8], [9] and [11], a semi-classical treatment was used in which electrons were subject to a continuous loss of energy through radiation of gamma-rays. In this continuous model, the radiation reaction force is approximated, to the lowest order in 1/γ, by the expression…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo calculations of pair production in high-intensity laser–plasma interactions

Duclous

Kirk

Bell

2010

Plasma Phys. Control. Fusion

226

243

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“…The recoil in such an event provides a discontinuous radiation reaction force [20]. As discussed below, the discontinuous radiation model consists of random sampling of the synchrotron spectrum and so tends to the continuous-loss model [17,[23][24][25][26] as ω h << γm e c 2 ( ω h is the energy of the emitted photon), i.e. as the sampling frequency → ∞.…”

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confidence: 99%

Dense Electron-Positron Plasmas and Ultraintenseγrays from Laser-Irradiated Solids

et al. 2012

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In simulations of a 10PW laser striking a solid we demonstrate the possibility of producing a pure electron-positron plasma by the same processes as those thought to operate in high-energy astrophysical environments. A maximum positron density of 10 26 m −3 can be achieved, seven orders of magnitude greater than achieved in previous experiments. Additionally, 35% of the laser energy is converted to a burst of gamma-rays of intensity 10 22 Wcm −2 , potentially the most intense gammaray source available in the laboratory. This absorption results in a strong feedback between both pair and γ-ray production and classical plasma physics in the new 'QED-plasma' regime.Electron-positron (e − e + ) plasmas are a prominent feature of the winds from pulsars and black holes [1,2]. They result from the presence of electromagnetic fields strong enough to cause non-linear quantum electrodynamics (QED) reactions [3] in these environments leading to a cascade of e − e + pair production [4]. These fields can be much lower than the Schwinger field for vacuum breakdown [5] if they interact with highly relativistic electrons (γ >> 1) [3]. Non-linear QED has been probed experimentally with lasers in two complementary ways:(1) with a particle accelerator accelerating electrons to the necessary γ and a laser supplying the fields [6-8]; or (2) with a laser accelerating the electrons and goldnuclei supplying the fields [9][10][11]. An alternative configuration, using next-generation high-intensity lasers to provide both the acceleration and the fields [12], has the potential to generate dense e − e + plasmas. Analytical calculations and simulations exploring this configuration have shown that an overdense e − e + plasma can be generated from a single electron by counter-propagating 100PW lasers [12][13][14][15]. Here we will show that such a plasma can be generated with an order of magnitude less laser power by firing the laser at a solid target, putting such experiments in reach of next-generation 10PW lasers [16].The dominant non-linear QED effects in 10PW laserplasma interactions are: synchrotron gamma-ray photon (γ h ) emission from electrons in the laser's electromagnetic fields; and pair-production by the multiphoton Breit-Wheeler process, γ h + nγ l → e − + e + , where γ l is a laser photon [3,17,18]. Each reaction is a strongly multiphoton process, the former process being non-linear Compton scattering, e − + mγ l → e − + γ h [19,20], in the limit m → ∞. Therefore, these reactions only become important at the ultra-high intensities reached in 10PW laser-plasma interactions. The importance of synchrotron emission is determined by the parameter η. This depends on the ratio of the electric and magnetic fields in the plasma to the Schwinger field [5] (E s = 1.3 × 10 18 Vm −1 ). For ultra-relativistic particles 17,18]. γ is the Lorentz factor of the emitting electron or positron, β is the corresponding velocity normalised to c and E ⊥ is the electric field perpendicular to its motion. As η approaches unity each emitted photon takes a ...

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Dynamics of emitting electrons in strong laser fields

Cited by 96 publications

References 28 publications

Extremely high-intensity laser interactions with fundamental quantum systems

Extremely high-intensity laser interactions with fundamental quantum systems

Monte Carlo calculations of pair production in high-intensity laser–plasma interactions

Dense Electron-Positron Plasmas and Ultraintenseγrays from Laser-Irradiated Solids

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